Believer

After a traumatic event, a drug trafficker turns sides and conspires with a dangerously ambitious undercover police officer to bring down the mysterious kingpin of a major drug cartel.

• 
  Cho Jin-woong

  Won-ho
• 
  Ryu Jun-yeol

  Seo Young-rak
• 
  Kim Joo-hyuk

  Jin Ha-rim
• 
  Cha Seung-won

  Brian
• 
  Kim Sung-ryung

  Oh Yeon-ok
• 
  Park Hae-joon

  Park Seon-chang
• 
  Nam Moon-chul

  Department Head
• 
  Seo Hyun-woo

  Jeong-il
• 
  Kang Seung-hyun

  So-yeon
• 
  Jung Jun-won

  Deok-cheon